Labs Flashcards
Angina Pectoris
Imaging:
CXR (cardiomegaly)
Stress ECG
CT Angiography
Labs: hs-CRP (plaque instability) Troponin, CK, CK-MB, Myoglobin (early), LDH-1 (RO MI) Lipid panel Glucose
Congestive Heart Failure
Imaging:
ECG
CXR (cardiomegaly)
Labs: CBC (infx) UA (proteinuria, CVD) Electrolytes (KD dsfxn) BUN/Creatinine (KD fxn) LFTs
Deep Vein Thrombosis
Imaging:
U/S
Labs:
D-dimer
PT, APTT
Hypertension
Imaging:
Stress ECG
AP CXR (cardiomyopathy)
Labs: Hgb A1c (diabetes) Creatinine (GFR - KD dz) Lipid panel (CVD) Urine Micoalbumin (KD dz) CBC, CMP
Acute Gastroenteritis
Imaging:
Abd CT
Labs:
Occult blood
CBC (WBC)
O&P
Appendicitis
Imaging:
CT
U/S
Labs:
CBC (WBC)
CRP
UA
Crohn’s
Imaging:
Barium enema
Abd X-ray
Endoscopy/Colonoscopy
Labs: CBC w/ diff (anemia) Electrolytes CRP/ESR Stool studies p-ANCA, ASCA
Gastritis
CBC (anemia)
LFTs, Renal fxn test
Occult blood
GERD
Imaging:
Upper endoscopy
Heidelberg test
IBS
Imaging:
Colonoscopy
Barium enema
Labs: CBC w/ diff CMP (metabolic d/o) ANCA Occult blood
Pancreatitis
Imaging:
U/S
CT
Labs: Amylase/lipase LFTs Electrolytes Renal fxn tests CBC
Peptic Ulcer Disease
Imaging:
Upper endoscopy
Labs:
H. pylori testing
Serum gastrin
Occult blood
Ulcerative Colitis
Imaging:
Colonoscopy w/ biopsy
Barium enema
Labs:
ANCA
ASCA
Rheumatoid Arthritis
Imaging:
X-ray
Labs: ESR/CRP CBC RF ANA anti-CCP
Allergic Rhinitis
Imaging:
X-ray
CT
Labs:
Allergy testing
CBC w/ diff
Asthma
Imaging:
Spirometry
Pulse Ox
CXR
Labs:
CBC w/ diff
Sputum analysis
Bronchitis
Imaging:
CXR
Spirometry
Labs:
Sputum cytology
Emphysema
Imaging:
CXR
CT
Labs: Hematocrit Arterial blood gas analysis Serum alpha1-antitrypsin Sputum analysis
Influenza
Imaging:
CXR
Labs:
Rapid tests
Secretion culture
Pneumonia
Imaging:
CXR (RO pleural effusions)
Labs:
CBC
Sputum analysis
Sinusitis
Imaging: CT scan (if complications)
Labs: CBC (infx) CRP (inflammation) Immunoglobulin studies (if recurrent) Nasal culture
Strep Throat
Labs:
Rapid strep test
URI
Labs:
Throat swab culture
CBC (WBC)
Alcoholic Liver Disease (Cirrhosis)
Imaging:
LV biopsy
Labs:
CRP
Electrolytes
Cholecystitis
Imaging:
U/S
Labs: CBC (WBC) LFTs (mb elev.) Bilirubin/Alk Phos (bile duct obstruction) Amylase/Lipase (RO pancreatitis) UA (RO pyelonephritis)
Cholelithiasis
Imaging:
U/S
Abd X-ray
Labs: CBC w/ Diff (WBC) LFT (bile duct obstruction) Alk phos/Bilirubin (obstruction) Amylase/Lipase (pancreatitis)
Meningitis
Labs: CBC w/ differential Lumbar puncture Electrolytes (dehydration, SIADH) Glucose BUN Liver profile
Tuberculosis
Imaging:
CXR
CT
Labs:
Acid-fast sputum smear
Mantoux skin test
HIV serology
Migraines
Imaging:
MRI/CT
Labs:
ESR/CRP (suspect giant cell arteritis)
Osteoarthritis
Imaging:
X-ray
Labs:
ESR/CRP
Rheumatoid factor
Sciatica
SLR (+Bragard’s, +Sicard’s)
Contact Dermatitis
Skin scraping
Allergy testing
Eczema/Atopic Dermatitis
Skin swab (abx sensitivity) Skin scraping (RO tinea)
Psoriasis
Labs: Rheumatoid factor (NEG) ESR (usu. normal) Uric acid (mb elev.) Fungal study (if hand/foot psoriasis worsening w/ topical steroid use) Skin Bx
